Stereoscope.



' PATENTED MAR. 17, 1903'. 1). E. KIRKPATRICK & I. A. DRYDEN.

STEREOSGOPE.

APPLICATION I ILED JAN. 23, 1903.

.io MODEL.

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UNITED STATES;

PATENT OFFICE.

DWIGHT E. KIRKPATRICK AND ISAAC A. DRYDEN, OF ST. LOUIS, MISSOURI.

STEREOSCOPE.

SPECIFICATION forming part Of Letters Patent NO. 722,851, dated'lVIarch 17, 1903.

Application filed Jannary'ZB, 1903. Serial IIo. 140,299- (No model.)

To aZZ whom it may concern:

Be it known that we, DWIGHT E. KIRKPAT- RICK and ISAAC A. DRYDEN, citizens of the United States, residing atSt. Louis, State of Missouri, have invented certain new and useful Improvements in Stereoscopes, of which the following is a full, clear, and exact description, reference being had to theaccom panying drawings, forming a part hereof.

Our invention has relation to improvements in stereoscopes; and it consists in the novel arrangement and combination of parts more fully set forth in the specification and pointed outin the claims.

In the drawings, Figurel is atop plan of the device with parts broken away. Fig.

2 is a side elevation thereof. Fig. 3 is a verpictures are mounted, one which shall make special provision. for lighting the pictures;

one which shall provide variously-colored light to be reflected on the web, and one possessing further and other advantages better apparent from a detailed description of the invention, which is as follows Referring to the drawings, 1 represents a casing or receptacle having a forward terminal compartment 2 andanadjacent compartment 3, closed by a lid 4." The base of the compartment 2 and the lid4 are provided with pairs of openings 5 5 for the reception of the spindles of the spools 6 6, upon which the picture -carrying web 7 is wound, the web passing from one spool to the other (depending on which spool is actuated) over the rear wall of the compartment 3. The upper ends of each spool arepolygonal, so as to accommodatethe socket of a key K, by which rotation in proper direction may be imparted first to one spool and. then the other, thus making the Web travel first in one direction and then the other. The compartment 3 is designed to receive a dry battery B, from which lead wires w, respectively, to a suitable switchboard S, mounted on the side of the receptacle and to an incandescent lamp L, mounted on a platform or bracket 8, forming a part of the adjustable lens-frame 9 and resting on the bottom of the receptacle. Projecting forwardly from' the lens-frame between the lenses is an arm 10, to which is secured a reflector R, occupying a position directly in front of thelamp L, the free edges of the reflector being provided with grooves or ways for the reception of the plates of colored glass G, whereby the character of ray cast by the reflector onto the web may be varied at pleasure. By turning the switchhandle H against the contact-button 11 the circuit-is closed and the lamp lighted, as is obvious.

' We do not, of course, wish to be limited to the details here shown, as these may be de- 1 parted from without affecting the nature or ried thereby'and having an electric lamp mounted thereon, a reflector secured to the lens-frame, and means forsecuring a colored glass plate to the reflector, substantially as set forth.

2. In a stereoscope, a lens-frame, a platform carried thereby, an arm located between the lenses and projecting forwardly therefrom, a reflector secured to said arm, andgrooves or ways at the .free edges of the reflector for the reception of aglass plate, substantially as set forth.

In testimony whereof We affix our signatures in presence of two witnesses.

DWIGHT E. KIRKPATRICK. ISAAC A. DRYDEN. Witnesses:

EMIL STAREK, W. O. KILLEEN. 

